Baking Soda in My Refrigerator

I always keep a fresh box of opened baking soda in my refrigerator. I try to remember to change it out every two months. If I get a sudden odor from a bag of cut-up onion or something like that, I put a slice of bread on each shelf in the refrigerator. That pulls the odor out pretty quick. When I wipe the shelves and drawers in it, I also put a little baking soda in the water.